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Technical Data Sheet
PartsTable / MRO / B1658
B1658 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

The B1658 is a the manufacturer industrial component. Key specifications include teeth_quantity: 36, criticality_code_justification: FEAT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-252-6397, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MRO→ MRO_GENERAL→ B1658
NSN: 3110-00-252-6397
FSC: 3110
CAGE: 90166 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
teeth_quantity36
special_featuresA PART, ASSEMBLY, OR SYSTEM IDENTIFIED AS ESSENTIAL TO WEAPON SYSTEM PERFORMANCE OR OPERATION TO PRESERVE LIFE AND SAFETY OF PERSONNEL
criticality_code_justificationFEAT
NSN3110-00-252-6397
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: B1658 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
4H90701-111AInterchangeable
interchangeable cross-reference
interchangeable
1658Interchangeable
interchangeable cross-reference
interchangeable
R925-11Interchangeable
interchangeable cross-reference
interchangeable
2222-11Interchangeable
interchangeable cross-reference
interchangeable
0596 3016Interchangeable
interchangeable cross-reference
interchangeable
6670PREST001LERInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B1658?
B1658 is a B1658. It is classified as a MRO (MRO_GENERAL).
What parts can replace B1658?
There are 16 known substitutes for B1658: 4H90701-111A, 1658, R925-11 and 13 more. Substitute compatibility should be verified for your specific system.
Is B1658 still available?
B1658 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026